Analysis

  • max time kernel
    123s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 22:07

General

  • Target

    062a72f890ce529e871945882ec12b8ac7d9708a4b62b693a61239d52cffeeff.xls

  • Size

    76KB

  • MD5

    eeb964d6e79f7eb8ad36a1e8aab18b6f

  • SHA1

    170bd8ea2093fe25eb3e0312eec5573fbd05e2e9

  • SHA256

    062a72f890ce529e871945882ec12b8ac7d9708a4b62b693a61239d52cffeeff

  • SHA512

    7c8f15fd98ae2a85dcceb01628e68e75153b124947207ea9347a333ea69e9a40764fbc99e40153c56026b7cdbe991685f71edf9ec3f07edc384188a0ab9ff1c2

  • SSDEEP

    1536:HUs000VoCcM2jcc0lbxOqTgZpM88ScJtXadGbR:HUf2jcc0lbxOKfjhJtXa0bR

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Deletes itself 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\062a72f890ce529e871945882ec12b8ac7d9708a4b62b693a61239d52cffeeff.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1780
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:292
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1552
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1732
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1548

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/292-219-0x0000000000000000-mapping.dmp
  • memory/1548-221-0x0000000000000000-mapping.dmp
  • memory/1552-222-0x0000000000000000-mapping.dmp
  • memory/1732-220-0x0000000000000000-mapping.dmp
  • memory/1780-71-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-383-0x0000000072CFD000-0x0000000072D08000-memory.dmp
    Filesize

    44KB

  • memory/1780-60-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-75-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-62-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-63-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-64-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-65-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-66-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-67-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-68-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-69-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-70-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-73-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-74-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-72-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-54-0x000000002FD11000-0x000000002FD14000-memory.dmp
    Filesize

    12KB

  • memory/1780-76-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-61-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-59-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-80-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-77-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-79-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-82-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-81-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-83-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-86-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-85-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-84-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-87-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-109-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-58-0x0000000072CFD000-0x0000000072D08000-memory.dmp
    Filesize

    44KB

  • memory/1780-57-0x00000000761E1000-0x00000000761E3000-memory.dmp
    Filesize

    8KB

  • memory/1780-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1780-55-0x0000000071D11000-0x0000000071D13000-memory.dmp
    Filesize

    8KB

  • memory/1780-78-0x0000000000423000-0x0000000000427000-memory.dmp
    Filesize

    16KB

  • memory/1780-385-0x0000000072CFD000-0x0000000072D08000-memory.dmp
    Filesize

    44KB